中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mesoporous GeOx/Ge/C as a Highly Reversible Anode Material with High Specific Capacity for Lithium-Ion Batteries

文献类型:期刊论文

作者Hohn, Nuri; Wang, Xiaoyan; Giebel, Michael A.; Yin, Shanshan; Mueller, David; Hetzenecker, Andreas E.; Biessmann, Lorenz; Kreuzer, Lucas P.; Moehl, Gilles E.; Yu, Haoyang
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2020
卷号12期号:41页码:47002-47009
关键词ONE-POT SYNTHESIS CARBON NANOCOMPOSITE GERMANIUM SILICON GE PERFORMANCE CHEMISTRY
DOI10.1021/acsami.0c13560
英文摘要Nanostructured Ge is considered a highly promising material for Li-ion battery applications as Ge offers high specific capacity and Li-ion diffusivity, while inherent mesoporous nanostructures can contribute resistance against capacity fading as typically induced by high volume expansion in bulk Ge films. Mesoporous GeOx/Ge/C films are synthesized using K4Ge9 Zintl clusters as a Ge precursor and the amphiphilic diblock copolymer polystyrene-block-polyethylene oxide as a templating tool. As compared to a reference sample without post-treatment, enhanced surface-to-volume ratios are achieved through post-treatment with a poor-good azeotrope solvent mixture. High capacities of over 2000 mA h g(-1) are obtained with good stability over 300 cycles. Information from morphological and compositional characterization for both reference and post-treated sample suggests that the good electrochemical performance originates from reversible GeO2 conversion reactions.
学科主题Science & Technology - Other Topics ; Materials Science
源URL[http://ir.nimte.ac.cn/handle/174433/20415]  
专题2020专题
2020专题_期刊论文
作者单位1.Muller-Buschbaum, P (corresponding author), Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, D-85748 Garching, Germany.
2.Muller-Buschbaum, P (corresponding author), Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, D-85748 Garching, Germany.
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Hohn, Nuri,Wang, Xiaoyan,Giebel, Michael A.,et al. Mesoporous GeOx/Ge/C as a Highly Reversible Anode Material with High Specific Capacity for Lithium-Ion Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(41):47002-47009.
APA Hohn, Nuri.,Wang, Xiaoyan.,Giebel, Michael A..,Yin, Shanshan.,Mueller, David.,...&Mueller-Buschbaum, Peter.(2020).Mesoporous GeOx/Ge/C as a Highly Reversible Anode Material with High Specific Capacity for Lithium-Ion Batteries.ACS APPLIED MATERIALS & INTERFACES,12(41),47002-47009.
MLA Hohn, Nuri,et al."Mesoporous GeOx/Ge/C as a Highly Reversible Anode Material with High Specific Capacity for Lithium-Ion Batteries".ACS APPLIED MATERIALS & INTERFACES 12.41(2020):47002-47009.

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来源:宁波材料技术与工程研究所

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